Technical information

Chapter 2: AT+i Commands Reference
May 31, 2008 AT+i Commands Reference Manual 2-143
+iUFn - User Fields and Macro Substitution
Default: 0 (Disabled PING polling).
Result Code:
I/OK If n is within limits.
I/ERROR Otherwise.
AT+iPFR~n Temporarily set the PING polling interval value for one session.
The permanent value will be restored after completing the next
session, whether the session was successful or not.
AT+iPFR? Report the current PING polling interval used. The reply is
followed by I/OK.
AT+iPFR=? Returns the message '0-65535'. The reply is followed by I/OK.
Syntax: AT+iUFn=<String>
Permanently sets user field n.
Parameters: n = 01..12
String = Parameter string-value.
Command Options:
String='' Empty User Field
String=<Str> Str is stored in the specified User Field.
Maximum Str length is 128 characters.
A User Field may be used for general-purpose storage.
In addition, a User Field may be used as a macro replacement
wherever an AT+i Command <parameter> is allowed:
The '#' character is used to prefix the UFn parameter to define
indirection. When used, the value of the User Field will be
substituted in the command before the command is processed.
#UF01 -- #UF12 are allowed.
For example:
Given: AT+iUF01=ftp.domain.com
Issuing: AT+iFOPN:#UF01:anonymous,[e-mail]
Is equivalent to:
AT+iFOPN:ftp.domain.com:anonymous,[e-mail]
The advantage of this is that the FTP server may be specified
dynamically by changing the UF01 parameter without requiring a
change in the AT+iFOPN command.
Default: Empty. No User Field value defined.
Result Code:
I/OK